Precision physics with a wide band super neutrino beam

We carry out a state-of-the-art assessment of long baseline neutrino oscillation experiments with wide band beams. We describe the feasibility of an experimental program using existing high-energy accelerator facilities, a new intense wide band neutrino beam (0-6 GeV) and a proposed large detector in a deep underground laboratory. We find that a decade-long program with 1 MW operation in the neutrino mode and 2 MW operation in the antineutrino mode, a baseline as long as the distance between Fermilab and the Homestake mine (1300 km) or the Henderson mine (1500 km), and a water Cherenkov detector with fiducial mass {approx}300 kT has optimum sensitivity to a nonzero {theta}{sub 13}, the mass hierarchy and to neutrino CP violation at the 3{sigma} C. L. for sin{sup 2}2{theta}{sub 13}>0.008. This program is capable of breaking the eight-fold degeneracy down to the octant degeneracy without additional external input.